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ChangeLog (2014-05-23): Fix ChangeLog entry to refer to target endianness instead of host endianness.

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2014-06-06  Thomas Preud'homme  <thomas.preudhomme@arm.com>

    gcc/
    * ChangeLog (2014-05-23): Fix ChangeLog entry to refer to target
      endianness instead of host endianness.
    * tree-ssa-math-opts.c (find_bswap_or_nop_1): Likewise in dumps and
      comments.

    gcc/testsuite/
    * gcc.dg/optimize-bswaphi-1.c: Adapt test to change of dump output.
      Specify -march=z900 as an additional option.
    * gcc.dg/optimize-bswapsi-1.c: Likewise for s390 options.
    * gcc.dg/optimize-bswapsi-2.c: Likewise.
    * gcc.dg/optimize-bswapdi-3.c: Likewise for adaptation to dump change.

From-SVN: r211309
This commit is contained in:
Thomas Preud'homme 2014-06-06 08:23:16 +00:00 • committed by Thomas Preud'homme
parent 3fd48b121a
commit 581263689a
7 changed files with 27 additions and 11 deletions
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10
gcc/ChangeLog
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@ -1,3 +1,10 @@
2014-06-06 Thomas Preud'homme <thomas.preudhomme@arm.com>
* ChangeLog (2014-05-23): Fix ChangeLog entry to refer to target
endianness instead of host endianness.
* tree-ssa-math-opts.c (find_bswap_or_nop_1): Likewise in dumps and
comments.
2014-06-06 Eric Botcazou <ebotcazou@adacore.com>
PR debug/53927
@ -2011,7 +2018,8 @@
(find_bswap_or_nop_1): This. Also add support for memory source.
(find_bswap): Renamed to ...
(find_bswap_or_nop): This. Also add support for memory source and
detection of bitwise operations equivalent to load in host endianness.
detection of bitwise operations equivalent to load in target
endianness.
(execute_optimize_bswap): Likewise. Also move its leading comment back
in place and split statement transformation into ...
(bswap_replace): This.

8
gcc/testsuite/ChangeLog
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@ -1,3 +1,11 @@
2014-06-06 Thomas Preud'homme <thomas.preudhomme@arm.com>
* gcc.dg/optimize-bswaphi-1.c: Adapt test to change of dump output.
Specify -march=z900 as an additional option.
* gcc.dg/optimize-bswapsi-1.c: Likewise for s390 options.
* gcc.dg/optimize-bswapsi-2.c: Likewise.
* gcc.dg/optimize-bswapdi-3.c: Likewise for adaptation to dump change.
2014-06-06 Jakub Jelinek <jakub@redhat.com>
* gfortran.dg/gomp/allocatable_components_1.f90: Adjust for

2
gcc/testsuite/gcc.dg/optimize-bswapdi-3.c
View file

@ -59,6 +59,6 @@ uint64_t read_be64_3 (unsigned char *data)
| ((uint64_t) *(data + 1) << 48) | ((uint64_t) *data << 56);
}
/* { dg-final { scan-tree-dump-times "64 bit load in host endianness found at" 3 "bswap" } } */
/* { dg-final { scan-tree-dump-times "64 bit load in target endianness found at" 3 "bswap" } } */
/* { dg-final { scan-tree-dump-times "64 bit bswap implementation found at" 3 "bswap" { xfail alpha*-*-* arm*-*-* } } } */
/* { dg-final { cleanup-tree-dump "bswap" } } */

4
gcc/testsuite/gcc.dg/optimize-bswaphi-1.c
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@ -2,7 +2,7 @@
/* { dg-require-effective-target bswap16 } */
/* { dg-require-effective-target stdint_types } */
/* { dg-options "-O2 -fdump-tree-bswap" } */
/* { dg-options "-O2 -fdump-tree-bswap -march=z900" { target s390-*-* } } */
/* { dg-additional-options "-march=z900" { target s390-*-* } } */
#include <stdint.h>
@ -42,6 +42,6 @@ uint32_t read_be16_3 (unsigned char *data)
return *(data + 1) | (*data << 8);
}
/* { dg-final { scan-tree-dump-times "16 bit load in host endianness found at" 3 "bswap" } } */
/* { dg-final { scan-tree-dump-times "16 bit load in target endianness found at" 3 "bswap" } } */
/* { dg-final { scan-tree-dump-times "16 bit bswap implementation found at" 3 "bswap" { xfail alpha*-*-* arm*-*-* } } } */
/* { dg-final { cleanup-tree-dump "bswap" } } */

2
gcc/testsuite/gcc.dg/optimize-bswapsi-1.c
View file

@ -2,7 +2,7 @@
/* { dg-require-effective-target bswap32 } */
/* { dg-require-effective-target stdint_types } */
/* { dg-options "-O2 -fdump-tree-bswap" } */
/* { dg-options "-O2 -fdump-tree-bswap -march=z900" { target s390-*-* } } */
/* { dg-additional-options "-march=z900" { target s390-*-* } } */
#include <stdint.h>

4
gcc/testsuite/gcc.dg/optimize-bswapsi-2.c
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@ -2,7 +2,7 @@
/* { dg-require-effective-target bswap32 } */
/* { dg-require-effective-target stdint_types } */
/* { dg-options "-O2 -fdump-tree-bswap" } */
/* { dg-options "-O2 -fdump-tree-bswap -march=z900" { target s390-*-* } } */
/* { dg-additional-options "-march=z900" { target s390-*-* } } */
#include <stdint.h>
@ -44,6 +44,6 @@ uint32_t read_be32_3 (unsigned char *data)
| (*data << 24);
}
/* { dg-final { scan-tree-dump-times "32 bit load in host endianness found at" 3 "bswap" } } */
/* { dg-final { scan-tree-dump-times "32 bit load in target endianness found at" 3 "bswap" } } */
/* { dg-final { scan-tree-dump-times "32 bit bswap implementation found at" 3 "bswap" { xfail alpha*-*-* arm*-*-* } } } */
/* { dg-final { cleanup-tree-dump "bswap" } } */

8
gcc/tree-ssa-math-opts.c
View file

@ -1971,7 +1971,7 @@ find_bswap_or_nop_1 (gimple stmt, struct symbolic_number *n, int limit)
n->range = n2.range + off_sub;
/* Reinterpret byte marks in symbolic number holding the value of
bigger weight according to host endianness. */
bigger weight according to target endianness. */
inc = BYTES_BIG_ENDIAN ? off_sub + n2.range - n1.range : off_sub;
mask = 0xFF;
if (BYTES_BIG_ENDIAN)
@ -2074,7 +2074,7 @@ find_bswap_or_nop (gimple stmt, struct symbolic_number *n, bool *bswap)
/* A complete byte swap should make the symbolic number to start with
the largest digit in the highest order byte. Unchanged symbolic
number indicates a read with same endianness as host architecture. */
number indicates a read with same endianness as target architecture. */
if (n->n == cmpnop)
*bswap = false;
else if (n->n == cmpxchg)
@ -2204,7 +2204,7 @@ bswap_replace (gimple stmt, gimple_stmt_iterator *gsi, tree src, tree fndecl,
if (dump_file)
{
fprintf (dump_file,
"%d bit load in host endianness found at: ",
"%d bit load in target endianness found at: ",
(int)n->range);
print_gimple_stmt (dump_file, stmt, 0, 0);
}
@ -2271,7 +2271,7 @@ bswap_replace (gimple stmt, gimple_stmt_iterator *gsi, tree src, tree fndecl,
/* Find manual byte swap implementations as well as load in a given
endianness. Byte swaps are turned into a bswap builtin invokation
while endian loads are converted to bswap builtin invokation or
simple load according to the host endianness. */
simple load according to the target endianness. */
unsigned int
pass_optimize_bswap::execute (function *fun)